Final answer:
Green chemistry is a concept that aims to eliminate waste in the production of products and services. It involves the design of chemical processes that minimize the use of environmentally hazardous substances and the generation of waste. Decoupling is another concept that emphasizes reducing the dependence of economic activities on physical goods.
Step-by-step explanation:
Green chemistry is a concept built on the idea of eliminating waste from all of the activities required to produce a product or service. It involves the purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste. One of the principles of green chemistry is maximizing the efficiency of processes for synthesizing chemical products, which is measured by the atom economy. Another important concept related to waste reduction is the idea of decoupling, which breaks the tendency for economic scale to be tightly coupled to physical goods.